I wouldn't say these are the type of art you can understand. They're abstract works, and can look cool, but the program used to make these (Alchemy) is mostly random. Abstract works of, for example, Piet, can be understood by analyzing their composition and colors. You can also use them to study composition and color theory.

Alchemy is good for inspirational stuff, though. It's easy to find different characters from the randomness of abstract Alchemy works.